Building Blocks are a modular furniture concept. With enough units of compatible sizes, you can assemble virtually any piece of furniture: space horizontally to create a bed platform, stack vertically to make shelves, use as posts for a table or desk, etc. The units are regular rectangles joined with dovetails that do not require nails or screws, creating a strong and aesthetically appealing structure.
Seen here are the first two Building Block units. These units were made entirely by hand from 100% recycled lumber (former garden beds).